21552831

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{11243}}^1$

素因数の和:11323

約数の個数: 16

約数和(自身を含む): 32382720

約数和(自身を除く): 10829889

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 11243, 33729, 101187, 303561, 798253, 2394759, 7184277, 21552831]

約数ペア:

[(1, 21552831), (3, 7184277), (9, 2394759), (27, 798253), (71, 303561), (213, 101187), (639, 33729), (1917, 11243)]